68009970 has 96 divisors (see below), whose sum is σ = 193325184. Its totient is φ = 14999040.

The previous prime is 68009941. The next prime is 68009983. The reversal of 68009970 is 7990086.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201642 + ... + 201978.

It is an arithmetic number, because the mean of its divisors is an integer number (2013804).

Almost surely, 2^68009970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68009970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96662592).

68009970 is an abundant number, since it is smaller than the sum of its proper divisors (125315214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68009970 is a wasteful number, since it uses less digits than its factorization.

68009970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 68009970 is about 8246.8157491240. The cubic root of 68009970 is about 408.1854573058.

The spelling of 68009970 in words is "sixty-eight million, nine thousand, nine hundred seventy".